METHOD AND DEVICE FOR CREATING COMBINED ANTIFILTRATION COATING Russian patent published in 2018 - IPC E02B3/16 

FIELD: construction.

SUBSTANCE: invention relates to hydraulic engineering and nature protection construction, it can be used in the creation of anti-filtration coatings on the channels of irrigation and drainage systems, water reservoirs, waste accumulators and other structures, the required erection of waterproofing screens, including in difficult engineering conditions. Method for creating a combined anti-filtration coating includes preparing soil base 1, laying waterproof sheet of geocomposite material 2, backfilling of the protective layer of soil 3, followed by its compaction and treatment with waterproof fixer on polymer base 4. Combined anti-filtration coating is formed from geocomposite material 2 consisting of a waterproof element in the form of granular bentonite, covering and reinforcing layers of geotextile material, latter of which is thermally bonded with a polymeric flat geogrid.

EFFECT: application of the invention will allow to provide increased anti-filtration efficiency and operational reliability, including when erecting screens in complex engineering conditions, due to application in the construction of a coating of a polymeric fixer a soil protective layer and a geocomposite anti-filtration material reinforced with a reinforcing layer of a geogrid.

2 cl, 2 dwg